Hydraulic pump.



J. BITTER. HYDRAULIC PUMP.

APPLICATION FILED FEB. I2. 1916.

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J. BITTER.

HYDRAULIC PUMP.

APPLICATION mu) FEB. I2. 1916.

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Patented Sept. 5, 1916..

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HYDRAULIC PUMP.

Application filed February 12, 1916.

To all whom it may concern:

Be it known that I, JosErH BITTER, a. subject of the King of Italy, anda resident of Orizaba, in the State of Vera Cruz, Mexico, have inventeda new and Improved Hydraulic Pump, of which the following is a full,clear, and exact description.

My invention relates to means for automatically raising water byhydrostatic columns to a height greater or equal to the hydrostaticcolumn used for raising the water. n

An object of the invention is to provide a simple, inexpensive andefficient valveless hydraulic pump without any reciprocating parts.

Another object of the invention is to provide an hydrostatic pumpwherein the liquid raised and the raising liquid may come fromindependent sources.

With the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combination and arrangement of parts as herein fullydescribed, illustrated and claimed.

In the accompanying drawings, forming part of the application, similarcharacters of reference indicate corresponding parts in both views.

Figure 1 is an elevation of my apparatus, partly in section to show thedetails of construction, the figure illustrating the apparatus whileraising water and Fig. 2 is a similar view illustrating the apparatuswhile accumulating water to be raised.

Referring to the drawings, 3 is the distributing tank connected by aconduit 4 to a suitable source of water. An hermetically closed tank 5,positioned at alower level than the distributing tank 3, is connectedtherewith by a conduit or pipe 6, the diameter of which is larger thanthat of the conduit &. The pipe 6 extends from substantially the top ofthe distributing tank 3 to substantially the bottom of tank 5, which isthe compressor tank. From substantially the bottom of the compressortank 5 risesa siphon 7, the bend 8 of the siphon being at a slightlylower level than the mouth of the pipe 6 within the distributing tank 3,said siphon 7 discharging into the atmosphere.

An hermetically closed tank 9 is connected to the discharge tank 3 by aU-shaped tube 10 extending from the bottom of the distributing tank tothe top of tank 9, which Specification of Letters Patent.

Patented Sept. 5, 1916".

Serial No. 77,913.

is the charge-receiving tank. The said tank 9 is placed a little lowerthan the level reached by the water in the distributing tank 3, so thatthe water flows from the one into the other by gravity. The charge-receiving tank 9 is connected to the compressor tank 5 by a conduit 11extending through the tops of the tanks 5 and 9. Through this conduitthe compression exerted in tank 5 is transmitted to tank 9. Thedischarge conduit 12 leads from the bottom of the charge-receiving tank9 to the top of an open tank 13, which is a receiving tank and which islocated at any desired height above the tank 9. The discharge pipe .ispreferablyin the shape of a spiral. The capacity of tank 9 is less thanthe liquid holding of a section of the spiral 12, which section isshorter along the vertical than the shorter branch of siphon 7, that is,shorter than C'H. The capacity of tank 5must more than exceed thecapacity of tank 9 as many times as the height of tank 13, measuringfrom the tank 9, exceeds the height CH. For example, if CH is equal tothree feet and tank 13 is thirty feet above tank 9, the capacity of tank5 must be ten times the capacity of tank 9 plus an excess.

The operation is as follows: T/Vater enters constantly into thedistributing tank 3 through pipe 4:, descends through pipe 10 and fillstank 9 up to the upper end of pipe 11, the pipe 11 being slidablymounted in the tops of the tanks 5 and 9. By moving the end of pipe 11more or less into tank 9 the receiving capacity of same can be modified.Then the Water in tank 3 reaches the brim of tube 6 it overflows intotank 5, where it compresses the air and rises gradually into siphon 7The compression is transmitted through pipe 11 to tank 9. The flow ofwater through pipe 10 is thus held back, and the contents of tank 9 areforced into the spiral 12. As the water keepsrising in the pipe 6 andsiphon 7 all the liquid of tank 9 will soon be inclosed in a givensection of the spiral 12 shorter than 0-H on the siphon; and as theliquid column so formed is statically lighter than the column of waternecessary to reach the overflowing point H in the siphon it gives wayconstantly before the pressure exerted in tank 5 and is rapidly pushedout and discharged rapidly into tank 13. The same pressure is constantlyexerted through pipe 10 as well, but will never repel the water fartherthan the bend therein for the height from the bend to tank 3 is greaterthan CH.

When all the water from tank 9 has been exhausted through the end ofspiral 12 the liquid in tank 5 should have risen nearly to come in touchwith the lower end of pipe 11. It may be here remarked that by adjustingthe lower end of pipe 11 the capacity of tank 5 can be modified asrequired to work the apparatus with the smallest possible waste ofwater. It will be seen that as soon as the water comes in touch withpipe 11 Within the tank 5 the liquid rises simultaneously in pipes 6 and11 and in siphon 7, but the shorter arm of the siphon 7 being theshorter of the three, the liquid passes the point H in the siphon andstarts the siphon, and the contents of tank 5 are discharged through thelonger arm of the siphon. In this phase of the operation the tank 5 actas an open tank, admitting air through pipe 6. For this purpose pipe 6is made larger than would be required to carry down the water enteringtank 3 through pipe 4. The longer arm of the siphon exceeds the shorterby A-B, and it is materially greater than AC, the height of water in thetank 5. Due to the fact that a certain suction is exerted and the air isdrawn into tank 5 through the conduit 6 which keeps up the flow ofliquid through the siphon, and the flow is all the more rapid thegreater the length AB as compared with AC. In this phase the tank 5 isfed constantly by the small quantity of water delivered by pipe 4: anddrained rapidly at given intervals by the large siphon 7 While tank 5 isbeing emptied, the pressure keeping back the liquid in pipe. 10 isreleased and water from tank 3 can enter tank 9 (see Fig. 2). In duetime siphon 7 runs dry. Water again fills tank 5, whence pressure isagain transmitted to tank 9 and the pumping cycle is repeated. Tank 9can be fed from a different source than tank 3, thus permitting theraising of water or liquid of a different character to any height bymeans of any kind of water, and this even if the two sources are locatedfar apart, by giving the required length to theair pipe 11.

It will be noticed that my apparatus is devoid of any movable part. Itsfunction is automatic and depends only on the supply of water. Attentionis called to the fact that the conduit 6 forms an overflow from thedistributing tank and that the siphon is adapted to discharge thecontents of the compressor tank at a rate exceeding the supply of thepipe 4 to the distributing tank whereby air enters into the compressortank, and the cycle of the apparatus is then repeated.

While I have described the principle of operation, together with theapparatus which I now consider to be the best embodiment thereof, Idesire to have it understood that the apparatus shown is merelyillustrative and that such changes may be made as are within the scopeof the appended claims.

I claim:

1. In an apparatus of the class described, a distributing tank, acompressor tank adapted to be filled with liquid from the distributingtank under a predetermined hydrostatic head, a siphon from thecompressor tank for emptying the same at a rate exceeding the supply tothe distributing tank, the hydrostatic head of the shorter arm of saidsiphon being less than the hydrostatic head under which the compressortank is filled, a charge receiving, closed tank positioned above thecompressor tank, a conduit for supplying liquid to said tank, thehydrostatic head of said conduit exceeding that of the shorter arm ofthe siphon, a conduit for transmitting air from the compressor tank tothe charge-receiving tank, and a liquid outlet from the charge receivingtank to a height exceeding the hydrostatic head of the shorter arm ofthe siphon as many times as the volume of the compressor tank exceedsthat of the charge-receiving tank.

2. In an apparatus of the class described, a distributing tank, acompressor tank adapted to be filled with liquid from the distributingtank under a predetermined hydrostatic head, a siphon from thecompressor tank for emptying the same ata rate exceeding the supply tothe distributing tank,

the hydrostatic head of the shorter arm of said siphon being less thanthat under which the compressor tank is filled, a charge-receiving,closed tank positioned above the compressor tank but below the liquidlevel of the distributing tank, a U-shaped conduit for supplying liquidto said charge-receiving tank from the distributing tank, thehydrostatic head of the U-shaped conduit exceeding that of the shorterarm of the siphon, a conduit for transmitting air from the compressortank to the charge-receiving tank, the length of said conduit exceedingthe length of the shorter arm of the siphon, and a liquid outlet fromthe chargereceiving tank to a height exceeding the hydrostatic head ofthe shorter arm of the siphon as many times as the volume of thecompressorltank exceeds that of the charge-receiving tan r.

3. In an apparatus of the class described, a distributing tank, acompressor tank adapted to be filled with liquid from the distributingtank under a predetermined hydrostatic head, a siphon from thecompressor tank for emptying the same at a rate exceeding the supply tothe distributing tank, the hydrostatic head in the shorter arm of thesiphon being less than the hydrostatic head by which the compressor tankis filled, a charge-receiving, closed tank positioned above thecompressor tank but below the liquid level of the distributing tank.

- the vertical length of which is less than the shorter arm of thesiphon.

4:. Inan apparatus of the class described, a distributing tank, meansfor supplying liquid to said tank, a compressor tank below thedistributing tank, an overflow from the delivery tank to the compressortank whereby the compressor tank may be filled from the distributingtank, a siphon from the compressor tank for emptying the same at a rateexceeding the supply to the distributing tank, the hydrostatic head ofthe shorter arm of the siphon being less than the hydrostatic head inthe overflow, a charge-receiving, closed tank positioned above thecompressor tank, a conduit for supplying liquid to said charge-receivingtank, the hydrostatic head of said conduit exceeding that of the shorterarm of the siphon, a conduit for transmitting air from the compressortank to the charge-receiving tank, the length of said conduit exceedingthat of the shorter arm of the siphon, and a liquid outlet from thecharge-receiving tank to a height exceeding the hydrostatic head of theshorter arm of the siphon as many times as the volume of the compressiontank exceeds that of the charge-receiving tank.

5. In an apparatus of the class described, a compressor tank, means forsupplying liquid continuously to the tank under, a predeterminedhydrostatic head, a siphon to empty the tank at a rate exceeding thesupply, whereby air enters the tank with the liquid as the tank isemptied by the siphon, the hydrostatic head of the shorter arm of thesiphon being less than the hydrostatic head under which liquid issupplied to the tank, and an air outlet from said tank.

6. In an apparatus of the class described, a liquid charge-receivingtank, means for supplying air intermittently to said tank, and aspiral-shaped conduit from said tank, the capacity of thecharge-receiving tank being less than the liquid holding of a section ofthe spiral, the pressure caused by the hydrostatic head of said spiralsection being less than the air pressure supplied to the tank.

7 In an apparatus of the class described, a distributing tank, acompressor tank, an overflow from the distributing tank to thecompressor tank, a siphon from the compressor tank for emptying the sameat a rate exceeding the supply to the distributing tank, whereby airinters the compressor tank through the overflow with the liquid from thedelivery tank, the hydrostatic head of the shorter arm of the siphonbeing less than the hydrostatic head in the overflow, said compressortank having an air outlet through which the compressed air isintermittently ejected.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOSEPH BITTER.

Witnesses:

GENzALs DIAZ, ROBERTO DIAZ CORREA.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

